{% block foo %}
    {% block foo_inner 'foo' %}
{% endblock %}

{{ block('foobar_print') }}

{% embed "teasers\skeleton.html.twig" %}
    {% block left_teaser %}
        {{ block('foobar_print_embed') }}
    {% endblock %}
    {% block right_teaser %}
    {% endblock %}
{% endembed %}

{% extends 'extends/foo.html.twig' %}
{% use 'use/foo.html.twig' %}

{% embed "teasers\skeleton.html.twig" %}
    {% extends 'embed_extends\foo.html.twig' %}
    {% use 'embed_use\foo.html.twig' %}
{% endembed %}
